package/flutter-pi: Fix help text for gstreamer audio player

The help text is currently copy and pasted from the gstreamer video
player plugin help text. Change it to reflect the text from the
CMakeLists.txt file.

Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 7437cad0183fbdc0c419547a0cf2cbe006e23814)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/flutter-pi/Config.in

@@ -32,9 +32,8 @@ config BR2_PACKAGE_FLUTTER_PI_GSTREAMER_AUDIO_PLAYER_PLUGIN
 	select BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_AUDIORESAMPLE
 	select BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VOLUME
 	help
-	  Include the gstreamer based video plugins in the finished
-	  binary. Allows for more stable, hardware accelerated
-	  video playback in flutter using gstreamer.
+	  Include the gstreamer based audio plugins in the finished
+	  binary.
 
 config BR2_PACKAGE_FLUTTER_PI_GSTREAMER_VIDEO_PLAYER_PLUGIN
 	bool "gstreamer video player"